Will the Photon replicator
board used for the Tau2 320 work
with the Tau2 640?

Yes, the Photon Replicator Board, as well as the Photon
Replicator Kit,
are compatible with the Tau2 640, Tau2 336, Tau2 324, and lower
resolution Tau2 cameras. The Photon Replicator Board mimics the 30-pin
SAMTEC connector used on both the legacy Photon 320 and legacy Photon
640 cameras. There are sufficient pins to pass all the available
signals including the 14-bit digital data using the Photon Replicator
Board.

The Photon Replicator Kit incorporates a Photon Replicator
Board, along
with a second adapter connector called a wearsaver. This device
translates signals from the 30-pin SAMTEC into a 15-pin D-sub
connector. The 15-pin D-sub can pass power, communication, analog
video, and digital video signals from a 320-format camera, however it
is limited to power, communication, and analog video only for
640-format cameras. Tau2 640 and legacy Photon 640 cameras require two
extra data lines for digital video, and there are not enough pins in
the wearsaver device to support the additional data.